JP2012202032A - Earthquake-resistant structure of suspended ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an earthquake-resistant structure of a suspended ceiling excellent in workability during construction.SOLUTION: In a suspended ceiling, a ceiling 1 having a ceiling panel 3 attached to undersurfaces of a plurality of ceiling joist members 2 and 25 disposed in parallel is supported in the state of being suspended from an upper structure 3. The suspended ceiling includes attachment means 12 for attaching an earthquake strengthening material 9, which is fixed to the upper structure 3, to the ceiling joist members 2 and 25. The earthquake strengthening material 9 is attached to the ceiling joist members 2 and 25 having already been fixed to the ceiling panel 3, to dispense with operations such as a screwing operation. Thus, since attachment operations are facilitated, an earthquake-resistant structure of the suspended ceiling excellent in workability during construction can be provided.

Description

  The present invention relates to an earthquake-resistant structure for a suspended ceiling in which a ceiling with a ceiling panel attached to the lower surface of a field edge is supported by being suspended.

  Conventionally, in a suspended ceiling that supports a ceiling with a ceiling panel attached to the lower surface of the field edge, the lower end of the brace that serves as a seismic reinforcement whose upper end is joined to the upper structure is interposed via a member provided between the field edges. There is an earthquake-resistant structure that is directly joined to the ceiling panel (Patent Document 1), which suppresses the shaking of the ceiling during an earthquake.

JP 2007-239441 A

  In the earthquake-resistant structure of the suspended ceiling described in Patent Document 1, the lower surface of the member provided between the field edges is joined to the ceiling panel with a large number of screws, and it takes time and labor to screw a large number of screws. As a result, the work efficiency is poor.

  Then, this invention solves the said subject and aims at providing the earthquake-resistant structure of the suspended ceiling excellent in the workability | operativity at the time of construction.

  The earthquake-resistant structure of the suspended ceiling of the invention of claim 1 is a suspended ceiling in which a ceiling in which a ceiling panel is attached to the lower surface of a plurality of field edges arranged in parallel is suspended from an upper structure and supported. An attachment means for attaching the fixed seismic reinforcement to the field edge is provided.

  The suspended earthquake-resistant structure of the invention according to claim 2 is characterized in that the mounting means includes a locking portion that locks in the groove portion of the field edge.

  The earthquake-resistant structure of the suspended ceiling according to the invention of claim 3 includes a reinforcing material attaching part for attaching the seismic reinforcing material to the attaching means separately from the engaging part, and the reinforcing material attaching part serves as the engaging part. It is characterized by being rotatably supported.

  The earthquake-proof structure for a suspended ceiling according to a fourth aspect of the invention is characterized in that the mounting means includes a plurality of the locking portions corresponding to a plurality of types of the field edges having different width dimensions of the groove portions.

  According to the first aspect of the present invention, it is possible to provide a seismic structure for a suspended ceiling that facilitates installation work and is excellent in workability during construction by attaching seismic reinforcement to a field edge that has already been fixed to the ceiling panel. Can do.

  According to the invention of claim 2, the seismic reinforcement can be easily attached to the field edge by locking the earthquake resistance reinforcement to the field edge via the attachment means, and the workability can be further improved. .

  According to invention of Claim 3, while being able to install an earthquake-proof reinforcement material in arbitrary directions, it becomes easy to change the direction of an earthquake-resistant reinforcement material even after construction, and it is desired that the earthquake-proof reinforcement material can obtain an earthquake resistance effect. Therefore, it is possible to improve the workability by installing it at a position that avoids the superstructure, piping in the ceiling, wiring, equipment and the like.

  According to invention of Claim 4, it becomes possible to attach an earthquake-proof reinforcement material corresponding to the said multiple types of said field edge from which the width dimension of a groove part differs, and while improving workability | operativity, it is multiple types with one attachment means. Therefore, the manufacturing cost can be reduced.

It is a top view which shows the outline of the earthquake-resistant structure of the suspended ceiling in 1st Example of this invention. It is a side view which shows the seismic structure of a suspended ceiling same as the above. It is a perspective view of an attachment means same as the above. It is a perspective view of the attachment means from the direction different from FIG. 3 same as the above. It is a perspective view of a field edge connection part same as the above. It is sectional drawing which shows the attachment state of a field edge connection part and a field edge member same as the above. It is sectional drawing which shows the attachment state of a field edge connection part and a narrow field edge member same as the above. It is a perspective view of the attachment means in 2nd Example of this invention. FIG. 9 is a perspective view of the attaching means from a direction different from FIG. It is a disassembled perspective view of the attachment means in 3rd Example of this invention. It is a perspective view of an attachment means same as the above. It is a top view which shows the outline of an earthquake-resistant structure of a suspended ceiling same as the above. FIG. 12 is a plan view showing the outline of the seismic structure of the suspended ceiling in a state where the direction of the seismic reinforcement is changed. FIG. 12 is a plan view showing the outline of the earthquake-resistant structure of the suspended ceiling in a state where the direction of the earthquake-proof reinforcement is further changed. It is sectional drawing which shows the outline of the earthquake-resistant structure of the suspended ceiling in 4th Example of this invention. It is a perspective view of a ceiling side attachment means same as the above. It is a perspective view of a field edge side attachment means same as the above. It is a perspective view of the field side attachment means from the direction different from FIG. 17 same as the above. It is a perspective view of the field side attachment means in 5th Example of this invention. FIG. 20 is a perspective view of the field side attachment means from a direction different from FIG. 19. It is a front view of the attachment means in 6th Example of this invention. It is a front view of the field side attachment means in 7th Example of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 7 show a first embodiment of the present invention. The ceiling 1 of this embodiment is divided into a plurality of field members 2 and 25 that are spaced apart from each other. When the ceiling panel 3 is attached and integrated, the ceiling surface is configured as a whole.

  Here, when showing an example of the suspended ceiling structure of the present embodiment, a plurality of grooved steels each having a substantially C-shaped cross section in which the field side groove portion 4 is formed as a groove portion along the longitudinal direction (X direction in the drawing). Suspending means such as a hanger made of a substantially S-shaped steel or the like on a suspension bolt 6 as a suspended member suspended from a ceiling slab 5 which is an upper structure such as a concrete base. A field receiving member 7 made of a section steel having a substantially C-shaped cross section connected through H is integrated perpendicularly to form a lattice body 8, and a gypsum board, a panel, etc. are formed on the lower surface of the field edge member 2. The ceiling panel 3 made of the above plate material is attached by screws.

  The seismic structure 10 of the suspended ceiling of the present embodiment includes a seismic reinforcing material 9 rigidly joined to a mounting hardware 11 whose upper end is joined to the lower surface of the upper structure 3 such as a ceiling slab at a desired position of the suspended ceiling. The seismic reinforcement member 9 is provided with attachment means 12 that enables attachment to the field members 2 and 25. In addition, it is applicable also to suspension ceiling structures other than a present Example, and the upper structure 3 shall not be restricted to a ceiling slab but may be other building structures, such as a beam.

  The attachment means 12 has a structure made of a metal such as stainless steel or aluminum having a reinforcing material attachment portion 13 extending in a substantially V shape and a field edge connection portion 14 to which the field edge member 2 can be attached. The reinforcing material attaching portion 13 and the field edge connecting portion are provided so as to be separable.

  The reinforcing member mounting portion 13 is inclined upward from both ends of the base end portion 15 formed horizontally at the top so that a pair of connecting rods 16 made of channel steel having a C-shaped cross section are substantially V-shaped. Each connecting rod 16 is provided with an upward inclination angle of θ1 (0 <θ1 <90 °) from the horizontal direction.

  Each connecting rod 16 is provided with a plurality of first connecting through portions 17, and the attachment means 12 is quake-resistant by the first fixing means 18 such as screws via the first connecting through portions 17. It is fixed to the reinforcing material 9.

  Here, the divided structure of the reinforcing member attaching portion 13 and the field edge connecting portion 14 will be described with reference to the drawings. The reinforcing member attaching portion 13 is bent substantially at a right angle at the lower portion of the base end portion 15 so as to have a substantially L shape in cross section. The structure is made of a metal such as stainless steel or aluminum provided with the formed bent portion 19.

  On the other hand, the field edge connection part 14 is substantially parallel downward from a pair of opposite end parts 21, 21 of the field edge connection part body 20 made of a thin metal plate such as stainless steel and aluminum formed in a substantially square shape. A pair of first raised portions 22 and 22 that can be inserted into the field edge side groove portion 4 of the field edge member 2 and the tips of the first raised portions 22 face upward so that the distance from each other increases. And is formed to be engageable along the longitudinal direction (X direction in the figure) on the inner surface of the edge portion 2A of the field edge member 2 so that the field edge member 2 is connected to the field edge side groove 4. A first locking portion 23 is provided that is slidably held along.

  Further, the field edge connecting portion 14 is provided with narrow second locking portions 24, 24 formed at a smaller interval than the first locking portions 23, 23, and the longitudinal direction of the field edge member 2 ( In the figure, it is possible to connect to a narrow field member 25 set to a width H2 smaller than a width H1 in a short direction (Y direction in the figure) which is a direction orthogonal to the horizontal direction. . Here, the width H1 of the field edge member 2 and the width L1 of the field edge side groove 4 are set to be approximately twice the width H2 of the narrow field edge member 25 and the width L2 of the field edge side groove 25A, respectively. Yes.

  Here, the second locking portions 24, 24 are raised downward between the first rising portions 22, 22 of the field edge connecting portion main body 20, substantially parallel to the first rising portion 22, and Ends of a pair of second raised portions 26, 26 that are formed at a gap M2 narrower than the gap M1 between the first raised portions 22, 22, and can be inserted into the groove 25A of the narrow field edge member 25. Are bent outwardly so as to be separated from each other, and are provided on the inner surface of the edge 25B of the narrow field edge member 25 so as to be engageable along the longitudinal direction (X direction in the figure). This is a structure in which the narrow edge member 25 is slidably held along the groove 25A.

  Further, a first fixing piece 27 is formed by extending the four corners of the field edge connecting portion main body 20 in a substantially L shape, and the first fixing through portion 28 formed in the first fixing piece 27 is formed. The second fixing means 29 such as a screw can be fixed to the side surface of the field edge member 2. Further, the second fixing penetrating portion 31 formed in the first rising portion 22 can be fixed to the side surface of the narrow field member by the third fixing means 32 such as a screw.

  In addition, reinforcing ribs 33 are formed by raising both end portions of the field edge connecting portion main body 20 different from the both end portions 21 and 21 upward.

  The bent portion 19 of the reinforcing material attaching portion 13 and the field edge connecting portion main body 20 of the field edge connecting portion 14 are detachably connected by a fourth fixing means 34 such as a screw.

  The seismic reinforcement 9 is composed of two members, a compression material and a tension material, which are used as a pair of brace materials, such as corrugated members having a substantially C-shaped cross section, I-shaped steel, H-shaped steel, etc., and wire materials such as wires And is fixed to the first connecting through portion 27 of the attaching means 12 by a fifth fixing means 35 such as a screw.

  As described above, in this embodiment, the attachment means 12 includes the reinforcing member attachment portion 13 in a field parallel to the longitudinal direction (X direction in the drawing) of the field edge member 2 which is also the direction in which the field edge member 2 extends. It attaches to the edge connection part 14, and can arrange | position the earthquake-proof reinforcement 9 in parallel with the longitudinal direction (X direction in a figure) of the field edge member 2. FIG.

  Further, in this embodiment, the reinforcing material attaching portion 13 and the field edge connecting portion 14 can be freely divided, thereby improving workability and easily attaching the reinforcing material attaching portion 13 to the existing field edge connecting portion. The attachment means 12 can be configured, and the manufacturing cost can be reduced.

  Furthermore, the attaching means 12 of the present embodiment is provided with the locking portions 23 and 24 having a plurality of widths, so that it can cope with the field members 2 and 25 having various width dimensions.

  In this embodiment, the connecting means 10 can be arranged at any position of the field edge member 2 along the longitudinal direction (X direction in the figure) of the field edge member 2, so that the suspension bolt 6 or the like is suspended. Regardless of the installation position of the installation member and other members arranged on the ceiling slab 5, the seismic reinforcement 9 can be arranged at an arbitrary position.

  As described above, this embodiment corresponds to claim 1, and the ceiling 1 in which the ceiling panel 3 is attached to the lower surface of the field edge members 2 and 25, which are a plurality of field edges arranged in parallel, is the upper structure 3. A suspension ceiling that is more suspended and supported is provided with attachment means 12 for attaching the seismic reinforcement 9 fixed to the upper structure 3 to the field members 2 and 25.

  In this case, by attaching the seismic reinforcement member 9 to the field edge members 2 and 25 already fixed to the ceiling panel 3, no work such as screwing is required, thereby facilitating the installation work and improving workability during construction. It is possible to provide a superior suspended ceiling earthquake resistant structure.

  Further, this embodiment corresponds to claim 2, and the first locking portion is used as the locking portion for locking the mounting means 12 to the field edge side groove portions 2A and 25A which are the groove portions of the field edge members 2 and 25. 23 and a second locking portion 24 are provided.

  In this case, the seismic reinforcing member 9 can be easily attached to the field members 2 and 25 with one touch by locking the seismic material 9 to the field members 2 and 25 via the attachment means 12. Can be further improved.

  Further, the present embodiment corresponds to claim 4, and the mounting means 12 is engaged with a plurality of types of field edge members 2, 25 having different width dimensions L 1, L 2 of the field edge side grooves 2 A, 25 A. As a part, a plurality of first locking parts 23 and second locking parts 24 are provided.

  In this case, it becomes possible to attach the seismic reinforcement 9 corresponding to a plurality of types of field members 2 and 25 having different width dimensions L1 and L2 of the grooves 2A and 25A. Since the means 12 can cope with a plurality of types of field edges 2 and 25, the manufacturing cost can be reduced.

  Moreover, as an effect on the embodiment, the seismic reinforcement 9 is attached to the ceiling panel 3 by attaching the seismic reinforcement 9 to the field members 2 and 25 that swing near the ceiling panel 3 at a position close to the ceiling panel 3. Installed in a close position, the distance between the seismic reinforcement 9 and the ceiling panel 3 is shortened so that the vibration of the ceiling panel 3 is efficiently transmitted to the seismic reinforcement 9 and released to the ceiling slab 5, and the ceiling panel 3 is shaken. It can be made strong structure.

  Further, the reinforcing member mounting portion 13 that is a connecting portion of the mounting means 12 to the seismic reinforcing member 9 is formed in a substantially V shape, so that the horizontal force generated by the shaking of the ceiling panel 7 due to an earthquake or the like can be prevented. Since the reinforcing material attaching portion 13 resists by elastic deformation of the substantially V-shaped portion, a high strength can be obtained with respect to the force in the horizontal direction, and the vibration proof property is improved.

  Next, FIGS. 8 and 9 show a second embodiment of the present invention. In this figure, the same parts as those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description of the common parts is omitted.

  The attachment means 40 of the present embodiment is arranged such that the reinforcing member attachment portion 13 is arranged in parallel with a direction (Y direction in the drawing) orthogonal to the longitudinal direction (X direction in the drawing) of the field member 2. It is detachably attached to the field edge connecting portion 14 via the fixing means 34.

  In this embodiment, each connecting rod 16 is formed in a flat plate shape, and an arc portion 41 is formed at the base portion of the connecting rod 16 with the base end portion 15.

  Furthermore, the first connecting through portion 17 is provided in advance in the connecting means 16 of the first embodiment at two locations on each connecting rod 16, whereas in the present embodiment it is indicated by a solid line in the figure. As shown in the figure, only one reference point is provided as a reference point for attaching the seismic reinforcement 9 to the connecting rod 16 in advance, and other than the reference point of the connecting rod 16 when the seismic reinforcement 9 is attached, as indicated by a dashed line in the figure. It is preferable to attach the seismic reinforcing material 9 by appropriately providing the first connecting through portion 17 later on at this point. Further, all of the first connecting through portions 17 may be retrofitted, and the installation location and the number of installations can be appropriately changed in addition to those illustrated.

  As described above, in this embodiment, the attachment means 40 can be disposed at any position of the field edge member 2 along the longitudinal direction (X direction in the drawing) of the field edge member 2, so that the suspension bolt 6 and the like are arranged. Regardless of the position of the hanging member and other members, the seismic reinforcement 9 can be arranged at an arbitrary position.

  Furthermore, by using the mounting means 40 of the present embodiment in combination with the mounting means 12 of the first embodiment, the seismic reinforcing material 9 can be used in the longitudinal direction (X direction in the figure) of the field edge member 2 or its orthogonal direction ( It can be installed in any direction (Y direction in the figure).

  Next, FIGS. 10 to 14 show a third embodiment of the present invention. In this figure, the same parts as those in FIGS. 1 to 9 are denoted by the same reference numerals, and detailed description of the common parts is omitted.

  The attachment means 50 of the present embodiment is provided with a screw hole 51 in the center portion of the field edge connection portion main body 20 of the field edge connection portion 14 and a third fixing purpose in the center portion of the bent portion 19 of the reinforcing material attachment portion 13. The bent portion 19 around the third fixing penetration portion 52 includes a plurality of fourth fixing penetration portions 53, 53, 53, and includes a third fixing penetration portion 52. The diameter is larger than the diameter of the screw hole 51.

  Then, a sixth fixing means 54 such as a screw is screwed into the screw hole 51 via the third fixing through portion 52, and the reinforcing member attaching portion 13 is rotatably held by the field edge connecting portion 14. When the reinforcing member mounting portion 13 is arranged in a desired direction with respect to the field edge mounting portion 14, the seventh fixing means 55 such as a screw is inserted into the field edge via the fourth fixing through portions 53, 53, 53. The reinforcing member mounting portion 13 is fixed to the field mounting portion 14 in a non-rotatable manner by being screwed to the connecting portion main body 20. And as shown in FIGS. 12-14, the seismic reinforcement 9 is not limited to the longitudinal direction (X direction in a figure) of the field edge member 2, or its orthogonal direction (Y direction in a figure), but to a horizontal direction. On the other hand, it can be arranged in any direction of 360 °.

  As described above, this embodiment corresponds to the third aspect of the present invention, and the reinforcing member attachment for attaching the seismic reinforcement 9 separately to the first engaging portion 23 and the second engaging portion 24 is attached to the attaching means 50. The reinforcing member mounting portion 13 is rotatably supported by the first locking portion 23 and the second locking portion 24.

  In this case, the seismic reinforcement 9 can be installed in an arbitrary direction, and the orientation of the seismic reinforcement 9 can be easily changed after the construction, and the seismic reinforcement 9 can be placed in a desired position where the seismic effect can be obtained. Since it can arrange | position, workability | operativity improves by installing in the position which avoided installations, such as piping, wiring, an apparatus, etc. in the upper structure 5 or the ceiling 1. FIG.

  Next, FIGS. 15 to 18 show a fourth embodiment of the present invention. In this figure, the same parts as those in FIGS. 1 to 14 are denoted by the same reference numerals, and detailed description of the common parts is omitted.

  Here, when showing an example of the suspended ceiling structure of the present embodiment, a plurality of grooved steels each having a substantially C-shaped cross section in which the field side groove portion 4 is formed as a groove portion along the longitudinal direction (X direction in the drawing). As a suspended member suspended from a ceiling slab 5 that is a superstructure such as a concrete base that is the ceiling of the lower floor D A field receiving member 7 made of a substantially C-shaped section steel connected to a bolt 6 via a hanging means H such as a hanger made of a substantially S-shaped section or the like is integrated perpendicularly to each other. A lattice body 8 is formed, and a ceiling panel 3 made of a plaster board, a panel, or the like is attached to the lower surface of the field edge member 2 by screwing.

  The seismic structure 10 of the suspended ceiling according to the present embodiment includes a ceiling side attachment means 60 that can be attached to the suspension bolt 6 that is a suspended member suspended from the ceiling slab 5, and a field edge side attachment that can be attached to the field edge member 2. It has a structure having the seismic reinforcement 9 as a connecting means for connecting the means 61 and the ceiling side attaching means 60 and the field edge side attaching means 61. In addition, it is applicable also to suspension ceiling structures other than a present Example, and the upper structure 3 shall not be restricted to a ceiling slab but may be other building structures, such as a beam.

  The ceiling-side mounting means 60 includes a contact portion 62 made of a substantially circular plate material, a hollow tube portion 63 erected in a vertical direction from a substantially central portion of the contact portion 62, and a contact portion of the tube portion 63. It has a structure made of metal such as stainless steel or aluminum having a ceiling side connecting portion 64 extending from the base end portion on the 62 side.

  Further, a substantially pierced member penetration portion 65 formed in communication with the inside of the cylindrical portion 63 is provided at a substantially central portion of the abutting portion 62, and the ceiling side mounting means 60 of this embodiment is a suspending member. The penetrating member can be inserted from the penetrating portion 65 through the inside of the cylindrical portion 63.

  A plurality of fifth fixing through portions 66 formed at predetermined intervals in the contact portion 62 are provided, and the contact portion 62 is connected to an eighth portion such as a screw through the fifth fixing through portion 66. These are fixed to the ceiling slab 5 by the fixing means 67.

  A first screw groove 68 is formed inside the cylindrical portion 63, and a suspension bolt 6 is provided so as to be screwable. Further, the outer periphery of the cylindrical portion 63 is formed in a polygonal shape such as a hexagon, and is shaped to be easily grasped and adapted to the hand, so that it can be easily screwed onto the suspension bolt 6.

  The ceiling side connecting portion 64 extends from the base end portion of the cylindrical portion 63 so as to be inclined downward from the abutment portion 62 with a downward inclination angle θ2 (0 <θ2 <90 °). Two connecting through-holes 69, and the ceiling-side mounting means 60 is fixed to the seismic reinforcement 9 by the ninth fixing means 70 such as screws via the second connecting through-hole 69. is there. Further, the bent portion 64A formed by bending the tip end portion of the ceiling side connecting portion 64 at a substantially right angle is also provided with a third connecting through portion 71 to which a screw or a wire can be attached. It is also possible to fix the ceiling side attaching means 60 and the seismic reinforcement member 9 through the through portion 71 for use.

  The field edge side attachment means 61 includes a reinforcing material mounting part 72 extending in a substantially V shape, a field edge receiving connection part 73 to which the field edge receiving member 7 can be connected, and a field edge to which the field edge member 2 can be connected. It has a metal structure such as stainless steel or aluminum having a connecting portion 74.

  The reinforcing material attaching portion 72 is inclined upward from both ends of a base end portion 75 having a horizontal upper portion so that a pair of connecting rods 76 made of channel steel having a C-shaped cross section are substantially V-shaped. Each connecting rod 76 is provided with an upward inclination angle θ1 (0 <θ1 <90 °) from the horizontal direction.

  Each connecting rod 76 is provided with a plurality of fourth connecting through portions 77, and the field side attachment means 61 is connected to the tenth fixing means 78 such as a screw through the fourth connecting through portions 77. It fixes to the seismic reinforcement 9 by.

  The field edge connection part 73 is formed by cutting the center part of the longitudinal contact part 79 suspended from the base end part 75 of the reinforcing material attaching part 72 and the base end part 75 of the reinforcing material attaching part 72 substantially horizontally. An upper contact portion 80 that is bent, a lower contact portion 81 that is horizontally bent so that a lower portion of the vertical contact portion 79 is substantially parallel to the upper contact portion 80, and an upper contact portion 80. And a lower abutting portion 81 are provided with fastening means 82 for fastening and holding the field edge receiving member 7.

  The fastening means 82 includes a fastening upper through portion 83 formed at one end of the upper contact portion 80, a fastening lower through portion 84 formed at one end of the lower contact portion 81, and a fastening upper through portion 83. A male screw member 85 that can be inserted into the lower fastening through-hole 84 and a second screw groove 86 into which the male screw member 85 formed in the lower fastening through-hole 84 can be screwed are provided. Instead of the thread groove 86, the nut may be screwed into the male thread member 85 from below the lower contact portion 81.

  The field edge connecting portion 74 is raised downward in parallel with a pair of opposite end portions 87 of the lower abutting portion 81, and a pair of raised portions 88 that can be inserted into the field edge side groove portion 1 of the field edge member 2. The tip of each rising portion 88 is bent outwardly so as to be spaced apart from each other, and is formed into a substantially J-shaped cross section, and in the longitudinal direction (X direction in the figure) on the inner surface of the edge 2A of the field edge member 2 An engaging portion 89 is provided so as to be engageable along the field edge and slidably hold the field edge member 2 along the field edge side groove portion 1.

  The seismic reinforcing material 9 is a grooved steel having a substantially C-shaped cross section used as a pair of brace materials, ie, a compression material and a tensile material, wire rods such as wire, etc. And are fixed to the connecting through portions 69, 71, 77 of the ceiling side mounting means 60 and the field edge side mounting means 61 by fixing means such as screws.

  Next, the effect | action is demonstrated about the said structure. First, a method for mounting the ceiling side mounting means 60 will be described. The suspension bolt 6 is inserted into the tubular portion 63 from the penetrating member through portion 65, and the suspension bolt 6 is screwed onto the tubular portion 63 until the abutment portion 62 abuts against the ceiling slab 5. The contact portion 62 is fixed to the ceiling slab 5 by the eighth fixing means 67 such as a screw through the fixing through portion 66, and the mounting of the ceiling side mounting means 60 is completed.

  Next, a method for attaching the field edge side attachment means 61 will be described. The rising portion 88 of the field edge connection portion 74 is inserted into the field edge side groove portion 1 of the field edge member 2, and the locking portion 89 is formed on the inner surface of the field edge side groove portion 1 in the longitudinal direction (X direction in the figure). ) And the rim member 2 is slidably held along the rim side groove portion 1.

  Further, the edge receiving member 7 is inserted into a space defined by a U shape by the upper contact portion 80, the vertical contact portion 79, and the lower contact portion 81, and the upper surface of the field receiving member 7 is inserted. The upper surface portion and the lower surface portion of the edge receiving member 7 are clamped by the male screw member 85 and the second screw groove 86 after the upper portion and the lower surface portion are opposed to the lower surface of the upper contact portion 80 and the upper surface of the lower contact portion 81, respectively. Are sandwiched between the lower surface of the upper contact part 80 and the upper surface of the lower contact part 81, and the field receiving member 7 is fixed to the field receiving connection part 73.

  In this way, the integrated lattice body 8 is assembled with the field edge member 2 and the field edge receiving member 7 orthogonal to each other via the field edge side mounting means 61, and the ceiling panel is formed on the lower surface portion of the field edge member 2. 7 is attached.

  Finally, one of the seismic reinforcing members 9 and the ceiling side attaching means 60 are fixed by the ninth fixing means 70 through the second connecting through portion 69, and further, the other of the seismic reinforcing members 9 and the side edge side attaching. When the means 61 is fixed by the tenth fixing means 78 via the fourth connecting through portion 77, the connection between the ceiling side attaching means 60 and the field edge side attaching means 61 via the seismic reinforcement 9 is completed.

  The ceiling-side mounting means 60 and the field edge-side mounting means 61 are connected by the seismic reinforcement member 9, thereby resisting the horizontal force acting on the ceiling panel 7 due to an earthquake or the like by the seismic reinforcement member 9. The panel 7 can be prevented from shaking.

  As described above, this embodiment corresponds to claim 1, and the ceiling 1 in which the ceiling panel 3 is attached to the lower surfaces of the plurality of field edges 2 and 25 arranged in parallel is suspended and supported from the upper structure 5. As a means for attaching the seismic reinforcement 9 fixed to the superstructure 5 to the field member 2, it is provided with field edge side mounting means 61, and the field member 2 already fixed to the ceiling panel 3 is seismically strengthened. Since the work such as screwing is not required by attaching the material 9, it is possible to provide an earthquake-resistant structure of a suspended ceiling that facilitates the attachment work and is excellent in workability during construction.

  Further, this embodiment corresponds to claim 2, and the field edge mounting means 61 is provided with a locking part 89 that locks the field edge members 2 and 25 in the field edge side groove 2 </ b> A. The seismic reinforcing member 9 can be easily attached to the field edge member 2 with one touch by engaging with the field edge member 2 via the edge side attachment means 61, and the workability can be further improved.

  As an effect of the embodiment, it can be attached to the ceiling side attachment means 60 that can be attached to the suspension bolt 6 as a suspended member suspended from the ceiling slab 5 that is the ceiling, and the field edge member 2 that holds the ceiling panel 7. And a seismic reinforcing member 9 for connecting the ceiling-side mounting means 60 and the field-side mounting means 61. The ceiling-side mounting means 60 is provided with a contact portion 62 that can contact the ceiling slab 5. As a result, when the force generated by the shaking of the ceiling panel 7 due to an earthquake or the like is transmitted from the field side mounting means 61 to the ceiling side mounting means 60 through the seismic reinforcement 9, the force is directly applied to the ceiling from the contact portion 62. By escaping to the slab 5, the load applied to the suspended member from the ceiling side mounting means 60 is reduced, and the suspended member such as the suspension bolt 6 and the anchor portion where this suspended member is placed are prevented from being damaged. , Can enhance the safety of the ceiling structure. Moreover, the seismic reinforcement 9 is attached to a position close to the ceiling panel 7 by attaching the seismic reinforcement 9 to the edge member 2 that swings close to the ceiling panel 7 at a position close to the ceiling panel 7. The distance between the ceiling panel 7 and the ceiling panel 7 can be shortened so that the vibration of the ceiling panel 7 can be efficiently transmitted to the seismic reinforcement 9 and escaped to the ceiling slab 5.

  Further, the contact portion 62 can be brought into surface contact with the ceiling slab 5, and the contact portion 62 can be brought into surface contact with the ceiling slab 5, thereby increasing the contact area of the contact portion 62 with the ceiling slab 5. Thus, by stabilizing the contact with the ceiling slab 5, the force transmitted from the ceiling panel 7 to the ceiling side mounting means 60 can be easily released to the ceiling slab 5, and the load applied to the suspended member by the ceiling side mounting means 60 is further reduced. Can be made.

  Further, an eighth fixing means 67 is provided as a fixing means for fixing the contact portion 62 and the ceiling slab 5, and the contact portion 62 is fixed to the ceiling slab 5, so that it is transmitted from the ceiling panel 7 to the ceiling side mounting means 60. A structure that prevents the ceiling-side mounting means 60 from rotating about a hanging member such as the suspension bolt 6 by force, and that allows the force transmitted from the ceiling panel 7 to the ceiling-side mounting means 60 to escape to the ceiling slab 5 more easily. Can be.

  Further, by forming the reinforcing member attaching portion 72, which is a connecting portion of the field side attaching means 61 with the seismic reinforcing member 9, in a substantially V shape, the horizontal force generated by the shaking of the ceiling panel 7 due to an earthquake or the like can be reduced. On the other hand, since the reinforcing member attaching portion 72 resists by elastic deformation of the substantially V-shaped portion, a high strength can be obtained with respect to the force in the horizontal direction, and the vibration proof property is improved.

  Further, the field edge side attaching means 61 is provided with a field edge receiving connection portion 73 for connecting the field edge member 2 and the field edge receiving member 7, so that the earthquake resistant structure of the ceiling slab 5, the field edge member 2 and the field edge member 2 are connected. By integrating the connection structure for connecting the edge receiving member 7 into a simple structure, it is possible to provide the ceiling seismic structure 8 excellent in manufacturing cost and workability.

  Further, since the reinforcing material attaching portion 72 is extended upward in a substantially V shape, the reinforcing material attaching portion 72, which is a connecting portion with the seismic reinforcing material 9, is connected to the field edge member 2 in the field edge side attaching means 61. Are formed at a distance from the field edge connection portion 74 that is the connection portion of the field edge receiving member 7 and the field edge connection portion 73 that is the connection portion of the field edge receiving member 7. Easy to connect and improve workability.

  Furthermore, the ceiling-side connecting portion 64 is formed so as to be inclined downward from the abutting portion 62 with respect to the base end portion of the cylindrical portion 63 with the downward inclination angle being θ2 (0 <θ2 <90 °). By resisting the horizontal force caused by the shaking of the ceiling panel 7 by the elastic deformation of the ceiling side connecting portion 64, it is possible to obtain a high strength against the horizontal force and improve the vibration isolation To do.

  As a modification of the present embodiment, a pile member placed at an arbitrary position of the ceiling slab 5 in place of the suspension bolt 6 is used as a hanging member, and this pile member is used for the hanging member of the ceiling side mounting means 60. The insertion of the penetrating part 65 and the cylindrical part 63 allows the construction of the earthquake-resistant structure 10 of the suspended ceiling at any point of the ceiling slab 5 other than the suspension bolt 6 being suspended. The degree of freedom is improved. Moreover, when using the pile member nailed in the ceiling slab 5 as the suspending member, the first screw groove 68 is not necessary. Furthermore, the cylindrical part 63 and the penetrating member penetration part 65 of the ceiling side attaching means 60 may be formed in a size that allows the hanging member such as the suspension bolt 6 and the pile member to be loosely fitted. If the hanging member is loosely fitted to the portion 63 or the penetrating member through portion 65, the load applied to the hanging member can be further reduced.

  Next, FIGS. 19 and 20 show a fifth embodiment of the present invention. In this figure, the same parts as those in FIGS. 1 to 18 are denoted by the same reference numerals, and detailed description of the common parts is omitted. In the present embodiment, a modification of the fourth embodiment is shown, and the field side attachment means 90 of the present embodiment forms each connecting rod 76 in a flat plate shape, and the base end portion of each connecting rod 76. An arc portion 91 is formed at the base portion with 75.

  Further, the third connecting through-hole 77 is provided in advance in each connection rod 76 in the field side mounting means 60 of the fourth embodiment, whereas in the present embodiment in the figure As shown by the solid line, only one reference point is provided in advance as the reference point for attaching the seismic reinforcement 9 to the connecting rod 76, and the reference of the connecting rod 76 is shown when installing the seismic reinforcement 9 as shown by the one-dot chain line in the figure. It is preferable to attach the seismic reinforcing material 9 by appropriately providing a fourth connecting through-hole 77 at a place other than the point by retrofitting. Further, all of the fourth connecting through portions 77 may be retrofitted, and the installation location and the number of installations can be changed as appropriate in addition to those illustrated.

  Next, FIG. 21 shows a sixth embodiment of the present invention. In this figure, the same parts as those in FIGS. 1 to 20 are denoted by the same reference numerals, and description of the common parts is omitted.

  In this embodiment, a modified example of the first embodiment is shown, and the field-side mounting means 100 of this embodiment is based on a mechanism 101 that rotatably holds the seismic reinforcement 9 on the field-side mounting means 100. Each connecting rod 16 provided separately from the end portion 15 is pivotally supported by bearings 102 provided on the left and right sides of the base end portion 15 so as to be rotatable in the vertical direction (R direction in the figure) by the shaft core 103. It has a mechanism.

  As described above, in the present embodiment, the mechanism 101 for rotatably holding the seismic reinforcement 9 on the field side attachment means 100 is provided, so that the connecting rod 16 is perpendicular to the base end portion 15 (R in the figure). The installation angle in the vertical direction (R direction in the figure) of the seismic reinforcement 9 attached to the connecting rod 16 can be arbitrarily set.

  Next, FIG. 22 shows a seventh embodiment of the present invention. In this figure, the same parts as those in FIGS. 1 to 21 are denoted by the same reference numerals, and description of the common parts is omitted.

  In this embodiment, a modified example of the fourth embodiment is shown, and the field-side mounting means 110 of this embodiment is based on a mechanism 111 that rotatably holds the seismic reinforcement 9 on the field-side mounting means 110. The connecting rods 76 provided separately from the end portion 75 are pivotally supported by bearings 112 provided on the left and right sides of the base end portion 75 so as to be rotatable in the vertical direction (R direction in the figure) by the shaft core 113. It has a mechanism.

  As described above, in the present embodiment, the mechanism 111 for rotatably holding the seismic reinforcement 9 on the field side attachment means 110 is provided, so that the connecting rod 76 is perpendicular to the base end portion 75 (R in the figure). The installation angle in the vertical direction (R direction in the figure) of the seismic reinforcement 9 attached to the connecting rod 75 can be arbitrarily set.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the shape of the contact portion 62 is not limited to a circular shape, and may be an ellipse or a polygon. The contact surface of the contact portion 62 with the ceiling slab 5 is not limited to a flat surface shape. A plurality of protrusions may be provided on the contact surface of the contact portion 62, and point contact by the plurality of protrusions may be used. If the contact portion 62 and the ceiling slab 5 are in stable contact with each other without any play, The shape of the contact portion 62 is not particularly limited.

  In addition, if the eaves reinforcement and the wire are used in combination with the seismic reinforcement 9, the vibration resistance is not only further improved, but the wire as the seismic reinforcement 9 functions as a means for preventing the ceiling panel 3 from falling, and the ceiling structure is safe. Also improves. Further, the ceiling-side mounting means 60 and the field-side mounting means 12, 61 are connected by the earthquake-resistant reinforcing material 9, and the ceiling-side mounting means 60 is connected by the earthquake-resistant reinforcing material 9 through the second connecting through portion 71. If it is connected to other ceiling-side mounting means 60 or each of the field-side mounting means 12, 40, etc., the vibration isolation is further improved.

  Furthermore, the connection between the ceiling side attaching means 60 and the earthquake-resistant reinforcing material 9 may be performed through the second connecting through portion 71.

1 Ceiling 2 Field edge member 3 Ceiling panel 4 Field edge side groove (groove)
5 Ceiling slab (superstructure)
9 Seismic reinforcement
10 Vibration-proof structure of suspended ceiling
12 Mounting method
13 Stiffener mounting
23 First locking part
24 Second locking part
25 Narrow field members
25A Groove
40 Mounting method
50 Mounting means
61 Field side mounting means (mounting means)
90 Field side mounting means (mounting means)
100 Field edge mounting means (mounting means)
110 Field edge mounting means (mounting means)

Claims (4)

A suspended ceiling in which a ceiling with a ceiling panel attached to the lower surface of a plurality of field edges arranged in parallel is supported by hanging from the upper structure,
A seismic structure for a suspended ceiling, comprising attachment means for attaching a seismic reinforcing material fixed to the upper structure to the edge. The suspension ceiling earthquake-resistant structure according to claim 1, wherein the attachment means includes an engaging portion that engages with the groove on the edge. The mounting means includes a reinforcing material mounting portion for mounting the seismic reinforcing material separately from the locking portion, and the reinforcing material mounting portion is rotatably supported by the locking portion. Item 3. The earthquake-resistant structure of the suspended ceiling according to item 1 or 2. The suspended ceiling earthquake-resistant structure according to claim 2 or 3, wherein the attachment means includes a plurality of the locking portions corresponding to a plurality of types of the field edges having different width dimensions of the groove portions.

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